The author has offered _______ explanation(s) for CEOs' failure in government career.

A．they underwent a heavy hurricane attack.
B．the forecast hurricane did not hit the city.
C．the hurricane warning arrived rather late.
D．its precautionary measures were wasted.

A．demonstrate the power of advanced technology.
B．bring out the truth between life and death.
C．prevent such natural disasters from happening.
D．reduce human casualties and loss of property.